NASA Technical Note


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NASA Technical Paper


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Aeronautical Engineering


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A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)




NASA Contractor Report


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Transonic Pressure Measurements and Comparison of Theory to Experiment for an Arrow-wing Configuration


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A wind tunnel test of an arrow-wing-body configuration consisting of flat and twisted wings as well as a variety of leading- and trailing-edge control surface deflections, was conducted at Mach numbers from 0.4 to 1.1 to provide an experimental pressure data base for comparison with theoretical methods. Theory-to-experiment comparisons of detailed pressure distributions were made using current state-of-the-art attached and separated flow methods. The purpose of these comparisons was to delineate conditions under which these theories are valid for both flat and twisted wings and to explore the use of empirical methods to correct the theoretical methods where theory is deficient. The results are summarized.